package com.jyh.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

@Configuration
public class CorsConfig {

 // 当前跨域请求最大有效时长。这里默认1天
 private static final long MAX_AGE = 24 * 60 * 60;

 @Bean
 public CorsFilter corsFilter() {
     UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
     CorsConfiguration corsConfiguration = new CorsConfiguration();
     corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址
     corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头
     corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法
     corsConfiguration.setMaxAge(MAX_AGE);
     source.registerCorsConfiguration("/**", corsConfiguration); // 4 对接口配置跨域设置
     return new CorsFilter(source);
 }
}